- 12 Apr, 2016 40 commits
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Alexander Usyskin authored
commit 15c13dfc upstream. The bus data transfer interface was missing the check if the device is in enabled state, this may lead to stack corruption during link reset. Signed-off-by:
Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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David Howells authored
commit ac4cbedf upstream. There are still a couple of minor issues in the X.509 leap year handling: (1) To avoid doing a modulus-by-400 in addition to a modulus-by-100 when determining whether the year is a leap year or not, I divided the year by 100 after doing the modulus-by-100, thereby letting the compiler do one instruction for both, and then did a modulus-by-4. Unfortunately, I then passed the now-modified year value to mktime64() to construct a time value. Since this isn't a fast path and since mktime64() does a bunch of divisions, just condense down to "% 400". It's also easier to read. (2) The default month length for any February where the year doesn't divide by four exactly is obtained from the month_length[] array where the value is 29, not 28. This is fixed by altering the table. Reported-by:
Rudolf Polzer <rpolzer@google.com> Signed-off-by:
David Howells <dhowells@redhat.com> Acked-by:
David Woodhouse <David.Woodhouse@intel.com> Acked-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Boris BREZILLON authored
commit dfe97ad3 upstream. Forward devm_ioremap_resource() error code instead of returning -ENOMEM. Signed-off-by:
Boris Brezillon <boris.brezillon@free-electrons.com> Reported-by:
Russell King - ARM Linux <linux@arm.linux.org.uk> Fixes: f63601fd ("crypto: marvell/cesa - add a new driver for Marvell's CESA") Signed-off-by:
Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by:
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Vladimir Zapolskiy authored
commit b62917a2 upstream. The change fixes potential oops while accessing iomem on invalid address, if devm_ioremap_resource() fails due to some reason. The devm_ioremap_resource() function returns ERR_PTR() and never returns NULL, which makes useless a following check for NULL. Signed-off-by:
Vladimir Zapolskiy <vz@mleia.com> Fixes: 5a4eea26 ("crypto: ux500 - Use devm_xxx() managed function") Signed-off-by:
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Vladimir Zapolskiy authored
commit 9b52d55f upstream. The change fixes potential oops while accessing iomem on invalid address, if devm_ioremap_resource() fails due to some reason. The devm_ioremap_resource() function returns ERR_PTR() and never returns NULL, which makes useless a following check for NULL. Signed-off-by:
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Dan Carpenter authored
commit 2b8b28fd upstream. We're clearing the wrong memory. The memory corruption is likely harmless because we weren't going to use that stack memory again but not zeroing is a potential information leak. Fixes: e28facde ('crypto: keywrap - add key wrapping block chaining mode') Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Stephan Mueller <smueller@chronox.de> Signed-off-by:
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Tom Lendacky authored
commit ce0ae266 upstream. Since a crypto_ahash_import() can be called against a request context that has not had a crypto_ahash_init() performed, the request context needs to be cleared to insure there is no random data present. If not, the random data can result in a kernel oops during crypto_ahash_update(). Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
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Tom Lendacky authored
commit b31dde2a upstream. Use a local variable for the exported and imported state so that alignment is not an issue. On export, set a local variable from the request context and then memcpy the contents of the local variable to the export memory area. On import, memcpy the import memory area into a local variable and then use the local variable to set the request context. Signed-off-by:
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Tom Lendacky authored
commit d1662165 upstream. Since the exported information can be exposed to user-space, instead of exporting the entire request context only export the minimum information needed. Signed-off-by:
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Tom Lendacky authored
commit 952bce97 upstream. Commit 8996eafd ("crypto: ahash - ensure statesize is non-zero") added a check to prevent ahash algorithms from successfully registering if the import and export functions were not implemented. This prevents an oops in the hash_accept function of algif_hash. This commit causes the ccp-crypto module SHA support and AES CMAC support from successfully registering and causing the ccp-crypto module load to fail because the ahash import and export functions are not implemented. Update the CCP Crypto API support to provide import and export support for ahash algorithms. Signed-off-by:
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Dmitry Tunin authored
commit 75c6aca4 upstream. T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=01 Dev#= 4 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3472 Rev=00.01 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb BugLink: https://bugs.launchpad.net/bugs/1552925Signed-off-by:
Dmitry Tunin <hanipouspilot@gmail.com> Signed-off-by:
Marcel Holtmann <marcel@holtmann.org> Signed-off-by:
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Dmitry Tunin authored
commit 81d90442 upstream. T: Bus=01 Lev=01 Prnt=01 Port=04 Cnt=03 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=04ca ProdID=3014 Rev=00.02 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb BugLink: https://bugs.launchpad.net/bugs/1546694Signed-off-by:
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Dmitry Tunin authored
commit 609574eb upstream. T: Bus=03 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=13d3 ProdID=3395 Rev=00.01 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb BugLink: https://bugs.launchpad.net/bugs/1542564Reported-and-tested-by:
Christopher Simerly <kilikopela29@gmail.com> Signed-off-by:
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Vladis Dronov authored
commit 836b34a9 upstream. create_fixed_stream_quirk(), snd_usb_parse_audio_interface() and create_uaxx_quirk() functions allocate the audioformat object by themselves and free it upon error before returning. However, once the object is linked to a stream, it's freed again in snd_usb_audio_pcm_free(), thus it'll be double-freed, eventually resulting in a memory corruption. This patch fixes these failures in the error paths by unlinking the audioformat object before freeing it. Based on a patch by Takashi Iwai <tiwai@suse.de> [Note for stable backports: this patch requires the commit 902eb7fd ('ALSA: usb-audio: Minor code cleanup in create_fixed_stream_quirk()')] Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1283358Reported-by:
Ralf Spenneberg <ralf@spenneberg.net> Signed-off-by:
Vladis Dronov <vdronov@redhat.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Takashi Iwai authored
commit 902eb7fd upstream. Just a minor code cleanup: unify the error paths. Signed-off-by:
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Victor Clément authored
commit 0ef21100 upstream. The Microsoft HD-5001 webcam microphone does not support sample rate reading as the HD-5000 one. This results in dmesg errors and sound hanging with pulseaudio. Signed-off-by:
Victor Clément <victor.clement@openmailbox.org> Signed-off-by:
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Takashi Iwai authored
commit 447d6275 upstream. Add some sanity check codes before actually accessing the endpoint via get_endpoint() in order to avoid the invalid access through a malformed USB descriptor. Mostly just checking bNumEndpoints, but in one place (snd_microii_spdif_default_get()), the validity of iface and altsetting index is checked as well. Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=971125Signed-off-by:
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Takashi Iwai authored
commit 0f886ca1 upstream. create_fixed_stream_quirk() may cause a NULL-pointer dereference by accessing the non-existing endpoint when a USB device with a malformed USB descriptor is used. This patch avoids it simply by adding a sanity check of bNumEndpoints before the accesses. Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=971125Signed-off-by:
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Josh Boyer authored
commit 9c6ba456 upstream. The powermate driver expects at least one valid USB endpoint in its probe function. If given malicious descriptors that specify 0 for the number of endpoints, it will crash. Validate the number of endpoints on the interface before using them. The full report for this issue can be found here: http://seclists.org/bugtraq/2016/Mar/85Reported-by:
Josh Boyer <jwboyer@fedoraproject.org> Signed-off-by:
Dmitry Torokhov <dmitry.torokhov@gmail.com> Signed-off-by:
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Hans de Goede authored
commit 7445e45d upstream. SPC 880NC PC camera discussions: http://www.pclinuxos.com/forum/index.php/topic,135688.0.htmlReported-by:
Kikim <klucznik0@op.pl> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by:
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Bjørn Mork authored
commit d48d5691 upstream. Thomas reports: "Windows: 00 diagnostics 01 modem 02 at-port 03 nmea 04 nic Linux: T: Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#= 4 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=2001 ProdID=7e19 Rev=02.32 S: Manufacturer=Mobile Connect S: Product=Mobile Connect S: SerialNumber=0123456789ABCDEF C: #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA I: If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option I: If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option I: If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan I: If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage" Reported-by:
Thomas Schäfer <tschaefer@t-online.de> Signed-off-by:
Bjørn Mork <bjorn@mork.no> Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Josh Boyer authored
commit ea6db90e upstream. A Fedora user reports that the ftdi_sio driver works properly for the ICP DAS I-7561U device. Further, the user manual for these devices instructs users to load the driver and add the ids using the sysfs interface. Add support for these in the driver directly so that the devices work out of the box instead of needing manual configuration. Reported-by: <thesource@mail.ru> Signed-off-by:
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Martyn Welch authored
commit cddc9434 upstream. The CP2105 is used in the GE Healthcare Remote Alarm Box, with the Manufacturer ID of 0x1901 and Product ID of 0x0194. Signed-off-by:
Martyn Welch <martyn.welch@collabora.co.uk> Signed-off-by:
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Oliver Neukum authored
commit c55aee1b upstream. An attack using missing endpoints exists. CVE-2016-3137 Signed-off-by:
Oliver Neukum <ONeukum@suse.com> Signed-off-by:
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Oliver Neukum authored
commit 5a07975a upstream. The driver can be crashed with devices that expose crafted descriptors with too few endpoints. See: http://seclists.org/bugtraq/2016/Mar/61Signed-off-by:
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Oliver Neukum authored
commit 4e9a0b05 upstream. An attack using the lack of sanity checking in probe is known. This patch checks for the existence of a second port. CVE-2016-3136 Signed-off-by:
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Oliver Neukum authored
commit 0b818e39 upstream. Attacks that trick drivers into passing a NULL pointer to usb_driver_claim_interface() using forged descriptors are known. This thwarts them by sanity checking. Signed-off-by:
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Josh Boyer authored
commit 4ec0ef3a upstream. The iowarrior driver expects at least one valid endpoint. If given malicious descriptors that specify 0 for the number of endpoints, it will crash in the probe function. Ensure there is at least one endpoint on the interface before using it. The full report of this issue can be found here: http://seclists.org/bugtraq/2016/Mar/87Reported-by:
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Oliver Neukum authored
commit 8835ba4a upstream. An attack has become available which pretends to be a quirky device circumventing normal sanity checks and crashes the kernel by an insufficient number of interfaces. This patch adds a check to the code path for quirky devices. Signed-off-by:
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Hans de Goede authored
commit 55ff8cfb upstream. The uas driver can never queue more then MAX_CMNDS (- 1) tags and tags are shared between luns, so there is no need to claim that we can_queue some random large number. Not claiming that we can_queue 65536 commands, fixes the uas driver failing to initialize while allocating the tag map with a "Page allocation failure (order 7)" error on systems which have been running for a while and thus have fragmented memory. Reported-and-tested-by:
Yves-Alexis Perez <corsac@corsac.net> Signed-off-by:
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Oliver Neukum authored
commit 0d5ce778 upstream. A typo of j for i led to a logic bug. To rule out future confusion, the variable names are made meaningful. Signed-off-by:
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Oliver Neukum authored
commit 264904cc upstream. Some devices I got show an inability to operate right after power on if they are already connected. They are beyond recovery if the descriptors are requested multiple times. So in case of a timeout we rather bail early and reset again. But it must be done only on the first loop lest we get into a reset/time out spiral that can be overcome with a retry. This patch is a rework of a patch that fell through the cracks. http://www.spinics.net/lists/linux-usb/msg103263.htmlSigned-off-by:
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Bryn M. Reeves authored
commit 98dbc9c6 upstream. An "old" (.request_fn) DM 'struct request' stores a pointer to the associated 'struct dm_rq_target_io' in rq->special. dm_requeue_original_request(), previously named dm_requeue_unmapped_original_request(), called dm_unprep_request() to reset rq->special to NULL. But rq_end_stats() would go on to hit a NULL pointer deference because its call to tio_from_request() returned NULL. Fix this by calling rq_end_stats() _before_ dm_unprep_request() Signed-off-by:
Bryn M. Reeves <bmr@redhat.com> Signed-off-by:
Mike Snitzer <snitzer@redhat.com> Fixes: e262f347 ("dm stats: add support for request-based DM devices") Signed-off-by:
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Joe Thornber authored
commit d14fcf3d upstream. Otherwise operations may be attempted that will only ever go on to crash (since the metadata device is either missing or unreliable if 'fail_io' is set). Signed-off-by:
Joe Thornber <ejt@redhat.com> Signed-off-by:
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Joe Thornber authored
commit 2eae9e44 upstream. If a transaction abort has failed then we can no longer use the metadata device. Typically this happens if the superblock is unreadable. This fix addresses a crash seen during metadata device failure testing. Fixes: 8a01a6af ("dm thin: prefetch missing metadata pages") Signed-off-by:
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Mike Snitzer authored
commit 6acfe68b upstream. Request-based DM's blk-mq support (dm-mq) was reported to be 50% slower than if an underlying null_blk device were used directly. One of the reasons for this drop in performance is that blk_insert_clone_request() was calling blk_mq_insert_request() with @async=true. This forced the use of kblockd_schedule_delayed_work_on() to run the blk-mq hw queues which ushered in ping-ponging between process context (fio in this case) and kblockd's kworker to submit the cloned request. The ftrace function_graph tracer showed: kworker-2013 => fio-12190 fio-12190 => kworker-2013 ... kworker-2013 => fio-12190 fio-12190 => kworker-2013 ... Fixing blk_insert_clone_request()'s blk_mq_insert_request() call to _not_ use kblockd to submit the cloned requests isn't enough to eliminate the observed context switches. In addition to this dm-mq specific blk-core fix, there are 2 DM core fixes to dm-mq that (when paired with the blk-core fix) completely eliminate the observed context switching: 1) don't blk_mq_run_hw_queues in blk-mq request completion Motivated by desire to reduce overhead of dm-mq, punting to kblockd just increases context switches. In my testing against a really fast null_blk device there was no benefit to running blk_mq_run_hw_queues() on completion (and no other blk-mq driver does this). So hopefully this change doesn't induce the need for yet another revert like commit 621739b0 ! 2) use blk_mq_complete_request() in dm_complete_request() blk_complete_request() doesn't offer the traditional q->mq_ops vs .request_fn branching pattern that other historic block interfaces do (e.g. blk_get_request). Using blk_mq_complete_request() for blk-mq requests is important for performance. It should be noted that, like blk_complete_request(), blk_mq_complete_request() doesn't natively handle partial completions -- but the request-based DM-multipath target does provide the required partial completion support by dm.c:end_clone_bio() triggering requeueing of the request via dm-mpath.c:multipath_end_io()'s return of DM_ENDIO_REQUEUE. dm-mq fix #2 is _much_ more important than #1 for eliminating the context switches. Before: cpu : usr=15.10%, sys=59.39%, ctx=7905181, majf=0, minf=475 After: cpu : usr=20.60%, sys=79.35%, ctx=2008, majf=0, minf=472 With these changes multithreaded async read IOPs improved from ~950K to ~1350K for this dm-mq stacked on null_blk test-case. The raw read IOPs of the underlying null_blk device for the same workload is ~1950K. Fixes: 7fb4898e ("block: add blk-mq support to blk_insert_cloned_request()") Fixes: bfebd1cd ("dm: add full blk-mq support to request-based DM") Reported-by:
Sagi Grimberg <sagig@dev.mellanox.co.il> Signed-off-by:
Jens Axboe <axboe@kernel.dk> Signed-off-by:
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DingXiang authored
commit 4df2bf46 upstream. Otherwise loading a "snapshot" table using the same device for the origin and COW devices, e.g.: echo "0 20971520 snapshot 253:3 253:3 P 8" | dmsetup create snap will trigger: BUG: unable to handle kernel NULL pointer dereference at 0000000000000098 [ 1958.979934] IP: [<ffffffffa040efba>] dm_exception_store_set_chunk_size+0x7a/0x110 [dm_snapshot] [ 1958.989655] PGD 0 [ 1958.991903] Oops: 0000 [#1] SMP ... [ 1959.059647] CPU: 9 PID: 3556 Comm: dmsetup Tainted: G IO 4.5.0-rc5.snitm+ #150 ... [ 1959.083517] task: ffff8800b9660c80 ti: ffff88032a954000 task.ti: ffff88032a954000 [ 1959.091865] RIP: 0010:[<ffffffffa040efba>] [<ffffffffa040efba>] dm_exception_store_set_chunk_size+0x7a/0x110 [dm_snapshot] [ 1959.104295] RSP: 0018:ffff88032a957b30 EFLAGS: 00010246 [ 1959.110219] RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000000001 [ 1959.118180] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff880329334a00 [ 1959.126141] RBP: ffff88032a957b50 R08: 0000000000000000 R09: 0000000000000001 [ 1959.134102] R10: 000000000000000a R11: f000000000000000 R12: ffff880330884d80 [ 1959.142061] R13: 0000000000000008 R14: ffffc90001c13088 R15: ffff880330884d80 [ 1959.150021] FS: 00007f8926ba3840(0000) GS:ffff880333440000(0000) knlGS:0000000000000000 [ 1959.159047] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1959.165456] CR2: 0000000000000098 CR3: 000000032f48b000 CR4: 00000000000006e0 [ 1959.173415] Stack: [ 1959.175656] ffffc90001c13040 ffff880329334a00 ffff880330884ed0 ffff88032a957bdc [ 1959.183946] ffff88032a957bb8 ffffffffa040f225 ffff880329334a30 ffff880300000000 [ 1959.192233] ffffffffa04133e0 ffff880329334b30 0000000830884d58 00000000569c58cf [ 1959.200521] Call Trace: [ 1959.203248] [<ffffffffa040f225>] dm_exception_store_create+0x1d5/0x240 [dm_snapshot] [ 1959.211986] [<ffffffffa040d310>] snapshot_ctr+0x140/0x630 [dm_snapshot] [ 1959.219469] [<ffffffffa0005c44>] ? dm_split_args+0x64/0x150 [dm_mod] [ 1959.226656] [<ffffffffa0005ea7>] dm_table_add_target+0x177/0x440 [dm_mod] [ 1959.234328] [<ffffffffa0009203>] table_load+0x143/0x370 [dm_mod] [ 1959.241129] [<ffffffffa00090c0>] ? retrieve_status+0x1b0/0x1b0 [dm_mod] [ 1959.248607] [<ffffffffa0009e35>] ctl_ioctl+0x255/0x4d0 [dm_mod] [ 1959.255307] [<ffffffff813304e2>] ? memzero_explicit+0x12/0x20 [ 1959.261816] [<ffffffffa000a0c3>] dm_ctl_ioctl+0x13/0x20 [dm_mod] [ 1959.268615] [<ffffffff81215eb6>] do_vfs_ioctl+0xa6/0x5c0 [ 1959.274637] [<ffffffff81120d2f>] ? __audit_syscall_entry+0xaf/0x100 [ 1959.281726] [<ffffffff81003176>] ? do_audit_syscall_entry+0x66/0x70 [ 1959.288814] [<ffffffff81216449>] SyS_ioctl+0x79/0x90 [ 1959.294450] [<ffffffff8167e4ae>] entry_SYSCALL_64_fastpath+0x12/0x71 ... [ 1959.323277] RIP [<ffffffffa040efba>] dm_exception_store_set_chunk_size+0x7a/0x110 [dm_snapshot] [ 1959.333090] RSP <ffff88032a957b30> [ 1959.336978] CR2: 0000000000000098 [ 1959.344121] ---[ end trace b049991ccad1169e ]--- Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1195899Signed-off-by:
Ding Xiang <dingxiang@huawei.com> Signed-off-by:
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Jerry Hoemann authored
commit 07accfa9 upstream. Code attempts to prevent certain IOCTL DSM from being called when device is opened read only. This security feature can be trivially overcome by changing the size portion of the ioctl_command which isn't used. Check only the _IOC_NR (i.e. the command). Signed-off-by:
Jerry Hoemann <jerry.hoemann@hpe.com> Signed-off-by:
Dan Williams <dan.j.williams@intel.com> Signed-off-by:
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Alan authored
commit 5a51a7ab upstream. We were setting the queue depth correctly, then setting it back to two. If you hit this as a bisection point then please send me an email as it would imply we've been hiding other bugs with this one. Signed-off-by:
Alan Cox <alan@linux.intel.com> Reviewed-by:
Hannes Reinicke <hare@suse.de> Signed-off-by:
Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by:
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Maurizio Lombardi authored
commit 84bd6499 upstream. In beiscsi_setup_boot_info(), the boot_kset pointer should be set to NULL in case of failure otherwise an invalid pointer dereference may occur later. Signed-off-by:
Maurizio Lombardi <mlombard@redhat.com> Reviewed-by:
Johannes Thumshirn <jthumshirn@suse.de> Reviewed-by:
Jitendra Bhivare <jitendra.bhivare@broadcom.com> Signed-off-by:
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